Finding the Fourth Proportional to 90,465.12, 135,516.24 and 46,090.08
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Solution
The fourth proportional to 90,465.12, 135,516.24 and 46,090.08 is: 69,042.68
Step by Step Solution
- Step 1: Write the proportion equation
90,465.12 : 135,516.24 = 46,090.08 : x - Step 2: Convert to fraction form
90,465.12/135,516.24 = 46,090.08/x - Step 3: Cross multiply
90,465.12x = 135,516.24 × 46,090.08 - Step 4: Simplify right side
90,465.12x = 6,245,954,342.90 - Step 5: Solve for x
x = 6,245,954,342.90/90,465.12 - Step 6: Final answer
x = 69,042.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.